Building a Multi-Channel Notification Service in .NET 8

Short summary

This tutorial demonstrates building a production-grade notification service in .NET 8 that handles email, SMS, and push delivery through RabbitMQ message queues with template rendering, per-channel rate limiting, and resilient retry logic. The architecture decouples notification requests from delivery, improving API response times and preventing cascading failures. The post includes complete implementation details, code examples, and design patterns for extensibility.

• •Multi-channel notification service decouples delivery from application logic using RabbitMQ with AMQP priority support
• •Rate limiting per recipient, Scriban template rendering, and parallel channel dispatch ensure reliability and performance
• •Clean separation of concerns allows swapping providers (Twilio for Vonage, RabbitMQ for Service Bus) without touching core code

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